Summary of Contents for LG GoldStream LW1100P
- Page 1 LG GoldStream WilessLAN PCI Card Model Name : GoldStream Model No. : LW1100P May , 2001 LG Electronics Inc.
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Page 2: Table Of Contents
LG GoldStream Table of Contents 1. Introduction …………………………………………………………………………3 2. Circuit Description ………………………………………………………………… 3 3. Specification s …………………………………………………………………………9 3.1 General Specification ………………………………………………… 3.2 Electrical Specification ………………………………………………… 9 3.3 Environmental Specification ……………………………………………9 3.4 Mechanical Specification ………………………………………………10 3. Layout …………………………………………………………………………………… 3.1 Block Layout ………………………………………………………………... -
Page 3: Introduction
LG GoldStream 1. Introduction This paper describes the GoldStream PCI Card circuits, specifications,layouts and partlist etc. 2. Circuit Description 2.1 The Architecture The radio design is centered o n the expected signal characteristics of the modulation method. A Differential Quadrature Phase Shift Keying (DQPSK) modulation encodes the data in terms of phase with minimal amplitude variation, improving noise immunity. - Page 4 LG GoldStream FL2, a two pole dielectric bandpass filter, is used to suppress both transmit LO leakage and the undesired sideband. The HFA3983 RFPA amplifies the transmit signal to approximately +18dBm. The transmit sidelobe performance is approximately -30dBc. Allowing for a 3dB loss in the band select filter FL1, this gives a final output power of +15dBm.
- Page 5 LG GoldStream 2.4 2.4GHz RF/IF Converter and Synthesizer(HFA3683) The HFA3683A is a monolithic SiGe half duplex RF/IF transceiver designed to operate in the 2.4GHz ISM band. The receive chain features a low noise, gain selectable amplifier (LNA) followed by a down -converter mixer.
- Page 6 LG GoldStream characteristics of the HFA3783. DC current transients which occurs when the device is switched from transmit to receive cause VCO spurs to appear. 2.6 PLL The HFA3783 includes a classical architecture Phase Lock Loop circuit with a three wire serial control interface to be used with an external VCO.
- Page 7 LG GoldStream Differential Quaternary Phase Shift Keying (DQPSK) for 2Mbps, and Complementary Code Keying (CCK) for 5.5Mbps and 11Mbps. These implement data rates as shown in Table 3. The major functional blocks of the transmitter include a network processor interface, DPSK modulator, high rate modulator, a data scrambler and a spreader, as shown in Figure 7.
- Page 8 LG GoldStream and the data and /or header are modulated differently. The modulator can support date rates of 1, 2, 5.5 and 11Mbps. The programming details to set up the modulator are given at the introductory paragraph of this section. The HFA3861B utilizes Quadraphase (I/Q) modulation at baseband for all modulation modes.
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Page 9: Specifications
LG GoldStream 3. Specifications 3.1 General Specification Item Specification Unit Comments Frequency Range 2400 ~ 2483.5 M H z Radio Type Direct Sequence BPSK 1 Mbps Type of Modulation QPSK 2 Mbps Mbps CCK 5.5 and 11 Mbps 3.2 Electrical Specification... -
Page 10: Layout
LG GoldStream Item Specification Unit Comment Size 149 x 121 x 18 mm Weight 3. Layout 3.1 Block Layout Memory Block Power Supply Block Controller 3.2 PCB Profile l PCB Material : RCC & FR-4 l PCB Layer : 6 Layer Impedance Board... -
Page 11: Block Diagram
LG GoldStream 4. Block Diagram 11 of 11... -
Page 12: Circuit Diagram
LG GoldStream 5. Circuit Diagram Refer to attached files... -
Page 14: Component Layout
LG GoldStream 6. Component Layout Top Side (Component Layer) -
Page 15: Bottom Side (Solder Layer)
LG GoldStream Bottom Side (Solder Layer) - Page 16 LG GoldStream 6.3 Component Layer...
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Page 17: Part List
LG GoldStream 7. Part List Refer to attached file... -
Page 18: Photographs
LG GoldStream 8. Photographs... -
Page 19: Instruction Manual
LG GoldStream 9. Instruction Manual...